Process for the preparation of sulfoalkyl quaternary salts and for the production of alkane sultones

US4883880A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Helmut Kampfer · Idar-Oberstein, DE
• Wolfgang Himmelmann · Leverkusen, DE

Key dates

• Filing date: Aug 8, 1983
• Grant date: Nov 28, 1989
• Expiry date: Aug 8, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D417/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Propane or butane sultones are prepared by the thermal decomposition of the corresponding aryl sulfoalkyl ethers wherein the alkyl part has three or four carbons between the sulfo group and the ether oxygen. When a tertiary amine is present, the final product is the corresponding sulfoalkyl quaternary salt of the tertiary amine.